I was working on something that requires Henry's theme and felt bad because Henry's theme is never quite completely played in season 4.  The bit of his theme we do hear is perhaps my favorite bit of music in the series, so I started pining to hear the full thing.  The arrangement we hear is different from the one in season 3, so I took what we do have and modified my old season 3 theme to fit.  This is what I think Henry's theme sounded like, as composed, in season 4.

Music By Peter Iverson
Original Thomas Music By Mike O'Donnell and Junior Campbell
Unpublished work copyright (c) 2021 by Peter Ian Iverson

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Henry the Green Engine's Theme (Season 4--The Theme We Never Heard)

Sir Topham Hatt's S3 Theme

Toad & The Whale

I love Valentines Day. You get to be together with your Valentine and feel the Love. Lots of us Thomas Fans have our own Imaginations of Engine Love and the Engine Couples. I thought I have to do something in that Direction. So I made this Theme in a more lovely Style. 
This Theme is based on the Up River Theme from TUGS
Hope You enjoy and Happy Valentines Day.

A Valentines Special

Without the Lead, James' 2nd Theme Sound pritty Good. The SynthString are probably one of the best Instrument from all Jupiter Synths.

Hopy You Enjoy.

James' 2nd Theme Extended V3(No Lead)

Sorry about the slight ringing in some parts but I can't do anything about that

Duck's Theme But It's Just Backing Strings And Extended

Original Piece: Mike O' Donnell and Junior Campbell
Arranged by: The Cornish Crusader
Thomas and Friends is owned by HiT Entertainment/Mattel Creations, thus no money will be made from this track.

Flying Kipper Theme Season 4

I decided, what with EBP's character Will getting an updated model, he should also be given updated music! His theme was the first original piece I ever made, so I wanted to remain as true to the original as possible without a bunch of copy/paste. This new version, I feel, is much better, both in terms of quality and structure. Hope you enjoy!

Please DO NOT use this music in your videos! Only Edward's Branchline Productions or anyone he allows may use this theme. Thank you!

Will's Theme (DO NOT USE)

nyoom

Please DO NOT use this music in your videos! Only Q1Con or anyone he allows may use this theme. Thank you!

Reuben's Theme (DO NOT USE)

"G-G-G-G-GHOSTS!"

This theme... oooh the chills!

Also those bells in the background really add to the spooky vibes.

Thomas & Friends - Season 5

Henry's Ghastly Encounter

I always liked these guys.  I remember my father reading that particular set of stories to my when I was 2-years old.  I made it big, but slow to match the setting.

Music By Peter Iverson
Unpublished work copyright (c) 2020 by Peter Ian Iverson

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The Culdee Fell Mountain Railway Theme

I'm Oliver11GWR, instrumentalist of themes and full episodes from Thomas & Friends.  If you ever need a theme or episode instrumentalized, hit me up!  Feel free to use any of my music on here.  Enjoy!